
package ch.hearc.coursJava.exa.swing;

import java.io.File;


public class Utils
	{
	public final static String bin = "bin";

	/*
	 * Get the extension of a file.
	 */
	public static String getExtension(File f)
		{
	    String ext = null;
	    String s = f.getName();
	    int i = s.lastIndexOf('.');

	    if (i > 0 &&  i < s.length() - 1)
	    	{
	        ext = s.substring(i+1).toLowerCase();
	    	}
	    return ext;
		}
	}


